Parameters: 2.4G Wireless Transmission Technology,10M wireless receiving distance. Rechargeable design, built-in 500 mAh lithium battery Third gear DPI adjustment design quiet and elegant office wireless mouse High resolution: Max 1600 DPI high resolution for fluid motion Fashion ergonomic design: ergonomic design, comfortable grip, stylish appearance, easy to carry Specification: 1:Material: ABS 2:Key life: 5 million timesMute switch 3:Wireless distance: 10m 4:Battery capacity:500mAhChargeable lithium battery 5: Rated voltage / current: 3.7V / 18mA 6: Support System: Windows 98 / Me / 2000 / XP / Vista / Win 7 / Win8 / 10/Vista Mac OS or latest. ANTI-SLIP GRILLE WHEEL SMOOTH OPERATION Smooth operation,efficient and more comfortable LONG BATTERY LIFE,NO DEED TO CHARGE 500mAh rechargeable lithium battery,2-3 hour charger time SILENCE CLICK- SILENCCLICKNOT DSTURBING Intimate mute button,whether in a quiet office,even studying at night will create a quiet and comfortable environment for you GOOD LOOKING,GOOD USING,PUT IT DOWN COZY ELE PEBBLE-LIKE FEEL Exquisite volume,fits the curve of the hand delicate and comfortable